def add_pop_edge(pop_url,
src_uuid,
trg_uuid,
timestamp,
label,
properties=None):
"""
Add new link between two PoPs
:param pop_url: Url of PoP DB
:param src_uuid: Source uuid
:param trg_uuid: Target uuid
:param timestamp: timestamp of the update
:param label: Label of the link
:param properties: optionally dict containing key values representing
PoP link Properties
"""
if not properties:
properties = dict()
graph_db = neo4j.Graph(pop_url)
src_index = ('pop', 'uuid', src_uuid)
trg_index = ('pop', 'uuid', trg_uuid)
db_src = neo_resource.get_node(graph_db, src_index)
db_trg = neo_resource.get_node(graph_db, trg_index)
properties['timestamp'] = timestamp
edge = Relationship.cast(db_src, label, db_trg, properties)
graph_db.create(edge)
def get_resource(self, graph_db):
"""
Retrieve the resource from the DB
:param graph_db: Graph DB instance
:return Node: Resource node
"""
node = neo_resource.get_node(graph_db, self.index)
return node
def get_resource(self, graph_db):
"""
Retrieve the resource from the DB
:param graph_db: Graph DB instance
:return Node: Resource node
"""
node = neo_resource.get_node(graph_db, self.index)
return node
def add_pop_edge(pop_url, src_uuid, trg_uuid, timestamp, label, properties=None):
"""
Add new link between two PoPs
:param pop_url: Url of PoP DB
:param src_uuid: Source uuid
:param trg_uuid: Target uuid
:param timestamp: timestamp of the update
:param label: Label of the link
:param properties: optionally dict containing key values representing
PoP link Properties
"""
if not properties:
properties = dict()
graph_db = neo4j.Graph(pop_url)
src_index = ('pop', 'uuid', src_uuid)
trg_index = ('pop', 'uuid', trg_uuid)
db_src = neo_resource.get_node(graph_db, src_index)
db_trg = neo_resource.get_node(graph_db, trg_index)
properties['timestamp'] = timestamp
edge = Relationship.cast(db_src, label, db_trg, properties)
graph_db.create(edge)
def get_pop(pop_url, uuid):
"""
Retrieve PoP given the uuid
:param pop_url: Url of PoP DB
:param uuid: PoP uuid
:return dict: Dictionary containing PoP properties
"""
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', uuid)
pop = neo_resource.get_node(graph_db, index)
if pop:
results = dict(pop.properties)
return results
raise HTTPError(404, 'Resource not found: /pop/' + uuid)
def get_pop(pop_url, uuid):
"""
Retrieve PoP given the uuid
:param pop_url: Url of PoP DB
:param uuid: PoP uuid
:return dict: Dictionary containing PoP properties
"""
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', uuid)
pop = neo_resource.get_node(graph_db, index)
if pop:
results = dict(pop.properties)
return results
raise HTTPError(404, 'Resource not found: /pop/' + uuid)
def _get_graph_url(pop_url, pop_id):
"""
Retrieve EPA db url and PoP name for a given
pop_id
:param pop_url: Url of the PoP DB
:param pop_id: PoP ID
:return tuple: (EPA url, PoP name)
"""
try:
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', pop_id)
pop = neo_resource.get_node(graph_db, index)
if pop:
properties = dict(pop.properties)
if 'occi.epa.pop.graph_db_url' in properties and 'occi.epa.pop.name' in properties:
return properties['occi.epa.pop.graph_db_url'], properties['occi.epa.pop.name']
except Exception:
raise HTTPError(404, 'Error connecting to graph_url: ' + str(pop_url))
raise HTTPError(404, 'Resource not found: Epa-Pop-Id: ' + str(pop_id))
def _get_graph_url(pop_url, pop_id):
"""
Retrieve EPA db url and PoP name for a given
pop_id
:param pop_url: Url of the PoP DB
:param pop_id: PoP ID
:return tuple: (EPA url, PoP name)
"""
try:
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', pop_id)
pop = neo_resource.get_node(graph_db, index)
if pop:
properties = dict(pop.properties)
if 'occi.epa.pop.graph_db_url' in properties and 'occi.epa.pop.name' in properties:
return properties['occi.epa.pop.graph_db_url'], properties[
'occi.epa.pop.name']
except Exception:
raise HTTPError(404, 'Error connecting to graph_url: ' + str(pop_url))
raise HTTPError(404, 'Resource not found: Epa-Pop-Id: ' + str(pop_id))
def _get_odl_info(pop_url, pop_id):
"""
Retrieve OpenDaylight Url, username and password from the PoP DB
:param pop_url: Url of Neo4j PoP DB
:param pop_id: PoP ID
:return tuple: (ODL url, ODL username, ODL password
"""
try:
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', pop_id)
pop = neo_resource.get_node(graph_db, index)
if pop:
properties = dict(pop.properties)
if 'occi.epa.pop.odl_url' in properties and 'occi.epa.pop.odl_name' in properties \
and 'occi.epa.pop.odl_password' in properties:
return properties['occi.epa.pop.odl_url'], properties['occi.epa.pop.odl_name'],\
properties['occi.epa.pop.odl_password']
except Exception:
raise HTTPError(404, 'Error connecting to graph_url: ' + str(pop_url))
raise HTTPError(404, 'Resource not found: Epa-Pop-Id: ' + str(pop_id))
def _get_odl_info(pop_url, pop_id):
"""
Retrieve OpenDaylight Url, username and password from the PoP DB
:param pop_url: Url of Neo4j PoP DB
:param pop_id: PoP ID
:return tuple: (ODL url, ODL username, ODL password
"""
try:
graph_db = neo4j.Graph(pop_url)
index = ('pop', 'uuid', pop_id)
pop = neo_resource.get_node(graph_db, index)
if pop:
properties = dict(pop.properties)
if 'occi.epa.pop.odl_url' in properties and 'occi.epa.pop.odl_name' in properties \
and 'occi.epa.pop.odl_password' in properties:
return properties['occi.epa.pop.odl_url'], properties['occi.epa.pop.odl_name'],\
properties['occi.epa.pop.odl_password']
except Exception:
raise HTTPError(404, 'Error connecting to graph_url: ' + str(pop_url))
raise HTTPError(404, 'Resource not found: Epa-Pop-Id: ' + str(pop_id))
